---
title: "Changes to Generate speech from text (Lightning V3.1)"
method: POST
path: "/waves/v1/lightning-v3.1/get_speech"
---

# Changes to Generate speech from text (Lightning V3.1)

`POST /waves/v1/lightning-v3.1/get_speech`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 8 of 15 revisions.

- **2026-07-09** `2cdad4521408`: 1 info
- **2026-06-05** `fe19ca72e6ba`: 1 breaking
- **2026-05-20** `5819b4e0a03f`: 1 info
- **2026-05-08** `d9942bcb2050`: 10 breaking
- **2026-05-07** `28a4edb24e73`: 21 info
- **2026-05-07** `e77d108663a4`: 1 breaking, 2 info
- **2026-04-06** `1585480b6bd8`: 2 info
- **2026-03-14** `7db88208972c`: 1 info

## Changes

- **2026-07-09** `2cdad4521408`: 1 info
  - added the new optional request property `number_pronunciation_language`
- **2026-06-05** `fe19ca72e6ba`: 1 breaking
  - removed the enum value `auto` of the request property `language`
- **2026-05-20** `5819b4e0a03f`: 1 info
  - added the new optional request property `model`
- **2026-05-08** `d9942bcb2050`: 10 breaking
  - removed the enum value `ar` of the request property `language`
  - removed the enum value `de` of the request property `language`
  - removed the enum value `fr` of the request property `language`
  - removed the enum value `he` of the request property `language`
  - removed the enum value `it` of the request property `language`
  - removed the enum value `nl` of the request property `language`
  - removed the enum value `pl` of the request property `language`
  - removed the enum value `pt` of the request property `language`
  - removed the enum value `ru` of the request property `language`
  - removed the enum value `sv` of the request property `language`
- **2026-05-07** `28a4edb24e73`: 21 info
  - added the new `ar` enum value to the request property `language`
  - added the new `auto` enum value to the request property `language`
  - added the new `bn` enum value to the request property `language`
  - added the new `de` enum value to the request property `language`
  - added the new `es` enum value to the request property `language`
  - added the new `fr` enum value to the request property `language`
  - added the new `gu` enum value to the request property `language`
  - added the new `he` enum value to the request property `language`
  - added the new `it` enum value to the request property `language`
  - added the new `kn` enum value to the request property `language`
  - added the new `ml` enum value to the request property `language`
  - added the new `mr` enum value to the request property `language`
  - added the new `nl` enum value to the request property `language`
  - added the new `or` enum value to the request property `language`
  - added the new `pa` enum value to the request property `language`
  - added the new `pl` enum value to the request property `language`
  - added the new `pt` enum value to the request property `language`
  - added the new `ru` enum value to the request property `language`
  - added the new `sv` enum value to the request property `language`
  - added the new `ta` enum value to the request property `language`
  - added the new `te` enum value to the request property `language`
- **2026-05-07** `e77d108663a4`: 1 breaking, 2 info
  - removed the enum value `mulaw` of the request property `output_format`
  - added the new `alaw` enum value to the request property `output_format`
  - added the new `ulaw` enum value to the request property `output_format`
- **2026-04-06** `1585480b6bd8`: 2 info
  - added the new optional request property `request_id`
  - added the new optional request property `session_id`
- **2026-03-14** `7db88208972c`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/smallest-inc/apis/lightning-v3-1-api/docs/waves/v1/lightning-v3.1/get_speech/post.md) - [API](https://skmtc.dev/smallest-inc/apis/lightning-v3-1-api.md) - [Page](https://skmtc.dev/smallest-inc/apis/lightning-v3-1-api/changes/waves/v1/lightning-v3.1/get_speech/post)